Seeing as that Ned Gorski has a large 2" poly-kevlar-whatever-its-called barrier between him and his hydraulic presses when he's pressing rocket motors in case of the "accidental explosion", why doesn't he take similar precautions when ramming rockets by hand?
Is there a risk involved when ramming black powder rockets by hand? Would a 1" rocket motor exploding in your hands not be devastating?
Ok take this, for example. I used my 3lb ball mill to make some shitty homemade aluminum powder a couple years ago as per this "Make military grade aluminum powder at home" youtube video.
Since then I've ran multiple things through it, including potassium nitrate, sulfur, etc. but nomatter what I do or how many times that I clean it out it, it still has this silvery "taint" of what I believe to be aluminum powder residue stuck in the rubber. Potassium nitrate that I mill through it often comes out with a slight "grey" tint, although that could be the natural colour of KNO3 in its powdery form.
The reason this concerns me is: What if, say, a little tiny bit of those micronized bits of aluminum powder got into the black powder while I was milling it, causing it to be sensitive to shock, causing my hands to come-off while I ram a black powder rocket engine?
Should I be concerned about this? How can I clean-out my ball-mill drum of this "stuck" residue? Should I just buy an entirely new rubber jar?
Or, alternatively, is there a way to ram BP rockets with a hammer and mallet without holding the tube with your hand? I might just put it in between two XL bricks or something.
Edited by OblivionFall, 17 July 2017 - 11:45 PM.